\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Child mortality at the child level -- no interaction control variable}
\begin{tabular}{l*{3}{c}}
\toprule
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}\\
                    &\multicolumn{1}{c}{\textbf{\begin{tabular}[c]{@{}c@{}}0-5 years old\end{tabular}}}&\multicolumn{1}{c}{\textbf{\begin{tabular}[c]{@{}c@{}}0-1 year old\end{tabular}}}&\multicolumn{1}{c}{\textbf{\begin{tabular}[c]{@{}c@{}}1-5 years old\end{tabular}}}\\
\midrule
Full treatment      &       1.042   &       1.131   &       0.746   \\
                    &     (0.208)   &     (0.267)   &     (0.227)   \\
Information only    &       0.894   &       0.952   &       0.730   \\
                    &     (0.197)   &     (0.242)   &     (0.236)   \\
Interface only      &       1.013   &       1.071   &       0.769   \\
                    &     (0.201)   &     (0.243)   &     (0.245)   \\
\midrule
N                   &      20,371   &       9,171   &      17,363   \\
R$^{2}$             &               &               &               \\
P-value (Information = Interface)&       0.537   &       0.595   &       0.876   \\
P-value (Information = Full treatment)&       0.450   &       0.452   &       0.944   \\
P-value (Interface = Full treatment)&       0.879   &       0.787   &       0.924   \\
\hline              &               &               &               \\
F-test (joint significance of all 3 treatment groups)&       0.614   &       0.658   &       1.288   \\
P-value (joint significance of all 3 treatment groups)&       0.893   &       0.883   &       0.732   \\
\bottomrule
\end{tabular}
\end{table}
